Encyclopedia of India–China Cultural Contacts v1.c7.s7.t3.2

v1.c7.s7.t3.2

Tibetan Buddhists used and developed logic thoughts and interference ways of *Hetuvidya* including Dignaga’s Pramana-samuccaya (theme) and Dharmakirti’s Pramanavarttika (explanation), broke through four Indian heretical theories, established concepts of four Buddhist sects and set up the tenets of the thoughts of Prasangika Madhyamaka. Therefore, Hetuvidya was honoured as the golden key to open up the knowledge treasure gate of Tibetan Buddhism. A large number of monks attached importance to it as a methodology and cognition to seek truth and they wrote book and expounded theories to develop Hetuvidya.